LogMeIn - LogMeIn gives you fast, easy remote access to your PC or Mac from your browser, desktop and mobile...
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
UltraVNC - VNC remote access software, support server and viewer software for on demand remote computer support. Remote desktop support software for remote PC control. Free
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.